I have VerneMq Cluster of 8 nodes, 1 node always has a routing score of 80/20. Other 7 nodes have routing score of 99/1.

I also have a device client publisher and server subscriber. Device client publishes to a shared topic, my servers(4 in count) are subscribed to the shared topic.

Since VerneMq has a concept of shared subscription where, if more than one server is subscribed to the same topic then only one server gets the message.

Problem :
I am seeing 2 message publishes in my log with same message id.

Is it possible the routing score of 80/20 can cause this duplicate message publish?